. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 230 J. T. DAVIES AND F. H. TAYLOR _Q O 7 a v IO i. II h " 0 Uf 2 15 cr> J 17 18 zo. 20 l<1 18 17 16 IS flf 13 12 I' 10 q ft 7 Loo (calculated) tJio FIGURE 4. A comparison of observed olfactory thresholds and those calculated from equa- tion (4) assuming that the odorant molecules are uncoiled and orientated in the olfactory cell membrane. O Values for normal alcohols; A values for normal hydrocarbons; * other com- pounds. molecules are unfolded (Fig. 4) than with those obtained from the molecular volumes. The
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 230 J. T. DAVIES AND F. H. TAYLOR _Q O 7 a v IO i. II h " 0 Uf 2 15 cr> J 17 18 zo. 20 l<1 18 17 16 IS flf 13 12 I' 10 q ft 7 Loo (calculated) tJio FIGURE 4. A comparison of observed olfactory thresholds and those calculated from equa- tion (4) assuming that the odorant molecules are uncoiled and orientated in the olfactory cell membrane. O Values for normal alcohols; A values for normal hydrocarbons; * other com- pounds. molecules are unfolded (Fig. 4) than with those obtained from the molecular volumes. The constancy of \/p for the higher members of a homologous ali- phatic series, as can be seen from equation (4), means that the thresholds for these compounds will decrease less rapidly than if l/p increased continuously with chain length. This "tailing off" for the higher members of a series is ob- served for the thresholds of aliphatic alcohols, acids, hydrocarbons and with the chloroparaffins. The better agreement shown in Figure 4 (compared with Fig. 3) confirms the idea that the olfactory membrane is essentially fatty in nature. (b) Conditions at the olfactory cell surface In obtaining equation (4) from equation (3) by the use of experimental boundary conditions, values for log n (where n is the number of "sites" per cell) and a the area of one "site" are obtained. Log n is which means that there. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
